The heroine is potentially Sakisaka Io's best FL (or to say, becomes my fav). Love her not overly cheerful, clingy or chilidish character and stay positive attitude. On the other hand, the ML looks typical, not really stand out. I don't know how Sakisaka will build their chemistry.
Although I still can't put a judgement about the story, but it's surprisingly fresh. Hope it doesn't go dramatic or it's another toxic love triangle shit in the future.